Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleMonotonicity of certain differential operators in divergence form.AuthorsBoccardo, L.; Dacorogna, B.PublicationManuscripta Mathematica, 1989, Vol 64, Issue 2, p253ISSN0025-2611Publication typeArticleDOI10.1007/BF01160123